/*
Theme Name: Coreano — 한국어
Theme URI: https://dev.alejandrotamargo.com
Author: Alejandro Tamargo
Author URI: https://alejandrotamargo.com
Description: Tema WordPress para aprender coreano en español. Incluye templates para Escritura (Hangul), Lectura (frases), Vocabulario, Números, Cultura, Flashcards SRS y Conjugador de verbos.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 7.4
License: GPL v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: coreano
Tags: education, korean, language, custom-menu, custom-logo, threaded-comments, translation-ready
*/

/* ─── Variables ─────────────────────────────────────────── */
:root {
  --bg: #0e0d0c;
  --bg2: #161512;
  --surface: #1e1c19;
  --border: #2a2724;
  --text: #f0ede8;
  --text-muted: #7a7570;
  --accent: #e8432d;
  --accent2: #f5a623;
  --gold: #c9a84c;
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', sans-serif;
  --font-korean: 'Noto Sans KR', sans-serif;
}

[data-theme="light"] {
  --bg: #f8f5f0;
  --bg2: #efe9e0;
  --surface: #ffffff;
  --border: #ddd8d0;
  --text: #1a1816;
  --text-muted: #7a7570;
  --accent: #d63a24;
  --gold: #a07828;
}

/* ─── Reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ─── Noise overlay ─────────────────────────────────────── */
.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  opacity: .03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px;
}

/* ─── Nav ───────────────────────────────────────────────── */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 3rem;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(14, 13, 12, .85);
  backdrop-filter: blur(12px);
}
.nav-logo {
  font-family: var(--font-korean);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--accent);
  letter-spacing: -.02em;
}
.nav-links {
  display: flex;
  gap: 2rem;
}
.nav-links a {
  font-size: .875rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: .04em;
  text-transform: uppercase;
  transition: color .2s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width .25s ease;
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }

/* ─── Hero ──────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 6rem 3rem 4rem;
  overflow: hidden;
}
.hero-bg-char {
  position: absolute;
  right: -1rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-korean);
  font-size: clamp(14rem, 30vw, 28rem);
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px var(--border);
  line-height: 1;
  user-select: none;
  animation: float 8s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(-50%) rotate(-2deg); }
  50% { transform: translateY(-52%) rotate(2deg); }
}
.hero-content { position: relative; z-index: 1; max-width: 700px; }
.hero-tag {
  display: inline-block;
  font-size: .75rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: .3rem .8rem;
  border-radius: 2px;
  margin-bottom: 1.5rem;
  animation: fadeUp .6s ease both;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 8vw, 7rem);
  line-height: 1.0;
  letter-spacing: -.03em;
  margin-bottom: 1.5rem;
  animation: fadeUp .6s .1s ease both;
}
.hero-title em {
  font-style: italic;
  color: var(--accent);
}
.hero-sub {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  animation: fadeUp .6s .2s ease both;
}
.btn-primary,
a.btn-primary,
a.btn-primary:visited {
  display: inline-block;
  background: var(--accent);
  color: #fff !important;
  font-weight: 500;
  font-size: .9rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .9rem 2rem;
  border-radius: 3px;
  transition: background .2s, transform .15s;
  animation: fadeUp .6s .3s ease both;
  text-decoration: none;
}
.btn-primary:hover,
a.btn-primary:hover {
  background: #c4371f;
  color: #fff !important;
  transform: translateY(-2px);
}
.hero-stats {
  display: flex;
  gap: 3rem;
  margin-top: 5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  animation: fadeUp .6s .4s ease both;
}
.stat { display: flex; flex-direction: column; gap: .2rem; }
.stat span {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--gold);
}
.stat small {
  font-size: .75rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ─── Lessons section ───────────────────────────────────── */
.lessons {
  padding: 6rem 3rem;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 4rem;
  border-top: 1px solid var(--border);
}
.lessons-header { position: sticky; top: 6rem; height: fit-content; }
.section-label {
  display: block;
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 1rem;
  font-family: 'Courier New', monospace;
}
.lessons-header h2 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  line-height: 1.1;
  letter-spacing: -.02em;
}

/* ─── Lesson cards ──────────────────────────────────────── */
.lessons-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  align-content: start;
}
.lesson-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: border-color .25s, transform .2s, box-shadow .25s;
  cursor: pointer;
}
.lesson-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent) 0%, transparent 60%);
  opacity: 0;
  transition: opacity .3s;
}
.lesson-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(232, 67, 45, .15);
}
.lesson-card:hover::before { opacity: .05; }
.lesson-card--featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto auto auto;
  align-items: start;
}
.lesson-card--featured .card-korean {
  grid-column: 2;
  grid-row: 1 / 5;
  align-self: center;
  font-size: 5rem;
  margin-left: 2rem;
  color: var(--accent);
}
.card-num {
  font-family: 'Courier New', monospace;
  font-size: .75rem;
  color: var(--text-muted);
  letter-spacing: .1em;
  margin-bottom: .75rem;
}
.card-korean {
  font-family: var(--font-korean);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: .5rem;
  line-height: 1;
}
.lesson-card h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-bottom: .5rem;
  letter-spacing: -.01em;
}
.lesson-card p {
  font-size: .875rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 1rem;
}
.card-tag {
  display: inline-block;
  font-size: .7rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: .2rem .6rem;
  border-radius: 2px;
}

/* ─── CTA Strip ─────────────────────────────────────────── */
.cta-strip {
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 0;
  background: var(--bg2);
}
.cta-text {
  display: flex;
  gap: 4rem;
  animation: marquee 14s linear infinite;
  white-space: nowrap;
}
.cta-text p {
  font-family: var(--font-korean);
  font-size: 1.1rem;
  color: var(--text-muted);
  letter-spacing: .1em;
  flex-shrink: 0;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ─── Footer ────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 3rem 3rem 2rem;
  font-size: .8rem;
  color: var(--text-muted);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2.5rem;
  max-width: 1100px;
  margin: 0 auto 2.5rem;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: .6rem;
}
.footer-logo {
  font-family: var(--font-korean);
  font-weight: 700;
  color: var(--accent);
  font-size: 1.4rem;
  line-height: 1;
}
.footer-tagline {
  color: var(--text-muted);
  font-size: .78rem;
  line-height: 1.5;
}
.footer-col h4 {
  font-size: .7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text);
  margin: 0 0 .8rem;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: .4rem;
}
.footer-col a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color .2s;
}
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  max-width: 1100px;
  margin: 0 auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .75rem;
  color: var(--text-muted);
}
.footer-bottom-links {
  display: flex;
  gap: 1.2rem;
}
.footer-bottom-links a {
  color: var(--text-muted);
  text-decoration: none;
}
.footer-bottom-links a:hover { color: var(--accent); }

/* ─── Lesson Pages ──────────────────────────────────────── */
.lesson-page { max-width: 860px; margin: 0 auto; padding: 4rem 2rem 6rem; }
.lesson-page-header { margin-bottom: 3rem; padding-bottom: 2rem; border-bottom: 1px solid var(--border); }
.lesson-page-header .back {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .8rem;
  color: var(--text-muted);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 2rem;
  transition: color .2s;
}
.lesson-page-header .back:hover { color: var(--accent); }
.lesson-num {
  font-family: 'Courier New', monospace;
  font-size: .8rem;
  color: var(--accent);
  letter-spacing: .12em;
  margin-bottom: .5rem;
}
.lesson-page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  letter-spacing: -.03em;
  line-height: 1.05;
  margin-bottom: 1rem;
}
.lesson-page-header p {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 560px;
}

/* Section within lesson */
.lesson-section { margin-bottom: 3.5rem; }
.lesson-section h2 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  letter-spacing: -.02em;
  margin-bottom: 1.25rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--border);
}

/* Hangul grid */
.hangul-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: .75rem;
}
.alfabeto-sub {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin: 1.75rem 0 .5rem;
  color: var(--text);
  letter-spacing: .02em;
}
.alfabeto-sub::before {
  content: "// ";
  color: var(--accent);
  font-family: var(--font-mono, monospace);
  font-weight: 400;
}

/* Rules list (escritura) */
.rules-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  display: grid;
  gap: .5rem;
}
.rules-list li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  padding: .65rem .9rem;
  font-size: .9rem;
  line-height: 1.5;
}

/* Stroke order cards */
.stroke-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: .75rem;
  margin-bottom: 1rem;
}
.stroke-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: border-color .2s, transform .2s;
}
.stroke-card:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
}
.stroke-char {
  font-family: var(--font-korean);
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
}
.stroke-steps {
  display: flex;
  flex-direction: column;
  gap: .2rem;
  font-size: .75rem;
  color: var(--text-muted);
  font-family: var(--font-mono, monospace);
}

/* Syllable block diagrams */
.block-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: .75rem;
  margin-bottom: 1rem;
}
.block-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem;
  display: flex;
  gap: 1rem;
  align-items: center;
}
.block-diagram {
  width: 70px;
  height: 70px;
  flex-shrink: 0;
  display: grid;
  border: 2px solid var(--gold);
  border-radius: 4px;
  overflow: hidden;
  background: var(--bg);
}
.block-diagram.type-cv-h { grid-template-columns: 1fr 1fr; grid-template-rows: 1fr; }
.block-diagram.type-cv-v { grid-template-columns: 1fr; grid-template-rows: 1fr 1fr; }
.block-diagram.type-cvc-h { grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; }
.block-diagram.type-cvc-v { grid-template-columns: 1fr; grid-template-rows: 1fr 1fr 1fr; }
.block-diagram.type-cvc-h .b-c1 { grid-column: 1; grid-row: 1; }
.block-diagram.type-cvc-h .b-v  { grid-column: 2; grid-row: 1; }
.block-diagram.type-cvc-h .b-c2 { grid-column: 1 / 3; grid-row: 2; }
.b-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono, monospace);
  font-size: .85rem;
  font-weight: 700;
  color: var(--accent);
  border: 1px dashed var(--border);
}
.b-cell.b-v { color: var(--gold); }
.b-cell.b-c2 { color: var(--text-muted); }
.block-info {
  display: flex;
  flex-direction: column;
  gap: .25rem;
  font-size: .8rem;
  color: var(--text-muted);
  line-height: 1.4;
}
.block-info strong {
  color: var(--text);
  font-size: .9rem;
}
.block-ex {
  font-family: var(--font-korean);
  font-size: 1.1rem;
  color: var(--gold);
  letter-spacing: .15em;
}

/* Reading order cards */
.reading-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: .75rem;
}
.reading-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  text-align: center;
  transition: border-color .2s, transform .2s;
}
.reading-card:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
}
.reading-syllable {
  font-family: var(--font-korean);
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
}
.reading-flow {
  display: flex;
  align-items: center;
  gap: .35rem;
  flex-wrap: wrap;
  justify-content: center;
}
.reading-step {
  font-family: var(--font-korean);
  font-size: 1.1rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: .15rem .45rem;
}
.reading-step b {
  font-family: var(--font-mono, monospace);
  font-size: .65rem;
  color: var(--accent);
  margin-right: .25rem;
}
.reading-arrow {
  color: var(--text-muted);
  font-size: .9rem;
}
.reading-meta {
  display: flex;
  flex-direction: column;
  gap: .15rem;
  font-size: .75rem;
}
.reading-roman {
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.reading-es {
  color: var(--accent);
}
.hangul-cell {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem .75rem;
  text-align: center;
  transition: border-color .2s, transform .2s;
  cursor: default;
}
.hangul-cell:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
}
.hangul-cell .char {
  font-family: var(--font-korean);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--gold);
  display: block;
  line-height: 1;
  margin-bottom: .4rem;
}
.hangul-cell .roman {
  font-size: .7rem;
  color: var(--text-muted);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.hangul-cell .sound {
  font-size: .65rem;
  color: var(--accent);
  margin-top: .2rem;
}

/* Phrase cards */
.phrase-list { display: flex; flex-direction: column; gap: 1rem; }
.phrase-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem 1.5rem;
  align-items: center;
  transition: border-color .2s;
}
.phrase-card:hover { border-color: var(--border); }
.phrase-korean {
  font-family: var(--font-korean);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--text);
}
.phrase-info { }
.phrase-roman {
  font-size: .8rem;
  color: var(--accent);
  letter-spacing: .04em;
  margin-bottom: .25rem;
}
.phrase-es {
  font-size: .9rem;
  color: var(--text-muted);
}

/* Vocab grid */
.vocab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: .75rem;
}
.vocab-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem;
  transition: border-color .2s, transform .15s;
}
.vocab-card:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
}
.vocab-korean {
  font-family: var(--font-korean);
  font-size: 1.5rem;
  color: var(--text);
  margin-bottom: .25rem;
}
.vocab-roman {
  font-size: .75rem;
  color: var(--accent);
  margin-bottom: .35rem;
}
.vocab-es {
  font-size: .85rem;
  color: var(--text-muted);
}

/* Number table */
.number-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}
.number-table th {
  text-align: left;
  padding: .6rem 1rem;
  border-bottom: 1px solid var(--border);
  font-size: .75rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 500;
}
.number-table td {
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--border);
}
.number-table td:first-child {
  font-family: 'Courier New', monospace;
  color: var(--gold);
  font-size: 1rem;
  width: 60px;
}
.number-table .kor { font-family: var(--font-korean); font-size: 1.1rem; }
.number-table .rom { color: var(--accent); font-size: .8rem; }
.number-table tr:hover td { background: var(--surface); }

/* Culture cards */
.culture-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1rem; }
.culture-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.75rem;
  transition: border-color .2s;
}
.culture-card:hover { border-color: var(--accent); }
.culture-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  font-family: var(--font-korean);
  color: var(--gold);
}
.culture-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: .5rem;
}
.culture-card p { font-size: .875rem; color: var(--text-muted); line-height: 1.6; }

/* Quiz */
.quiz-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  margin-top: 2rem;
}
.quiz-box h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-bottom: 1.5rem;
}
.quiz-question { margin-bottom: 1.5rem; }
.quiz-question p {
  font-size: .95rem;
  margin-bottom: 1rem;
}
.quiz-question .korean-q {
  font-family: var(--font-korean);
  font-size: 2rem;
  color: var(--gold);
  display: block;
  margin-bottom: 1rem;
}
.quiz-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .5rem;
}
.quiz-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: .7rem 1rem;
  color: var(--text);
  font-family: var(--font-body);
  font-size: .875rem;
  cursor: pointer;
  text-align: left;
  transition: all .2s;
}
.quiz-btn:hover { border-color: var(--gold); color: var(--gold); }
.quiz-btn.correct { border-color: #4caf50; color: #4caf50; background: rgba(76,175,80,.08); }
.quiz-btn.wrong { border-color: var(--accent); color: var(--accent); background: rgba(232,67,45,.08); }
.quiz-feedback {
  margin-top: 1rem;
  font-size: .875rem;
  min-height: 1.4em;
  color: var(--text-muted);
}
.quiz-next {
  margin-top: 1.25rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: .65rem 1.5rem;
  font-family: var(--font-body);
  font-size: .85rem;
  font-weight: 500;
  cursor: pointer;
  letter-spacing: .05em;
  text-transform: uppercase;
  transition: background .2s;
  display: none;
}
.quiz-next:hover { background: #c4371f; }
.quiz-score {
  text-align: center;
  padding: 2rem;
  display: none;
}
.quiz-score .score-num {
  font-family: var(--font-display);
  font-size: 4rem;
  color: var(--gold);
}
.quiz-score p { color: var(--text-muted); margin-top: .5rem; }
.quiz-score button {
  margin-top: 1.5rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: .7rem 1.5rem;
  font-family: var(--font-body);
  cursor: pointer;
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  transition: background .2s;
}
.quiz-score button:hover { background: #c4371f; }

/* Lesson nav */
.lesson-nav {
  display: flex;
  justify-content: space-between;
  padding-top: 3rem;
  border-top: 1px solid var(--border);
  margin-top: 4rem;
}
.lesson-nav a {
  font-size: .85rem;
  color: var(--text-muted);
  letter-spacing: .06em;
  text-transform: uppercase;
  transition: color .2s;
}
.lesson-nav a:hover { color: var(--accent); }

/* Tool CTA — enlace destacado a una herramienta dentro de una lección */
.tool-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  background: linear-gradient(135deg, var(--surface) 60%, rgba(232,67,45,.04));
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  padding: 1.25rem 1.5rem;
  margin-top: 1.5rem;
  text-decoration: none;
  color: var(--text);
  transition: border-color .2s, transform .15s, box-shadow .2s;
}
.tool-cta:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(232,67,45,.12);
}
.tool-cta-text {
  display: flex;
  flex-direction: column;
  gap: .25rem;
}
.tool-cta-label {
  font-family: 'Courier New', monospace;
  font-size: .7rem;
  letter-spacing: .12em;
  color: var(--accent);
  text-transform: uppercase;
}
.tool-cta strong {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 400;
  letter-spacing: -.01em;
  color: var(--text);
}
.tool-cta-desc {
  font-size: .85rem;
  color: var(--text-muted);
  line-height: 1.55;
}
.tool-cta-arrow {
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--accent);
  white-space: nowrap;
  flex-shrink: 0;
}
@media (max-width: 600px) {
  .tool-cta { flex-direction: column; align-items: flex-start; gap: 1rem; }
}

/* Info box */
.info-box {
  background: rgba(200,168,76,.06);
  border: 1px solid rgba(200,168,76,.25);
  border-left: 3px solid var(--gold);
  border-radius: 4px;
  padding: 1rem 1.25rem;
  font-size: .875rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}
.info-box strong { color: var(--gold); }

/* ─── Particle grid (lección 2) ─────────────────────────── */
.particle-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: .75rem;
}
@media (max-width: 860px) {
  .particle-grid { grid-template-columns: repeat(2, 1fr); }
}
.particle-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: .9rem 1.25rem;
  transition: border-color .2s;
}
.particle-card:hover { border-color: var(--gold); }
.particle-char {
  font-family: var(--font-korean);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--gold);
  min-width: 3rem;
  text-align: center;
  flex-shrink: 0;
}
.particle-info {
  display: flex;
  flex-direction: column;
  gap: .15rem;
}
.particle-roman {
  font-size: .75rem;
  color: var(--accent);
  letter-spacing: .06em;
}
.particle-sound {
  font-size: .875rem;
  color: var(--text-muted);
}

/* ─── Scroll progress bar ────────────────────────────────── */
#scroll-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0;
  background: var(--accent);
  z-index: 9998;
  transition: width .1s linear;
}

/* ─── Theme toggle ──────────────────────────────────────── */
#theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted);
  font-size: 1rem;
  cursor: pointer;
  padding: .3rem .5rem;
  line-height: 1;
  transition: border-color .2s, color .2s;
  flex-shrink: 0;
}
#theme-toggle:hover { border-color: var(--accent); color: var(--accent); }

/* ─── Search ────────────────────────────────────────────── */
.search-wrap {
  position: relative;
}
#search-input {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: .875rem;
  padding: .4rem .85rem;
  width: 220px;
  outline: none;
  transition: border-color .2s, width .3s;
}
#search-input:focus { border-color: var(--accent); width: 260px; }
#search-input::placeholder { color: var(--text-muted); }
#search-results {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  min-width: 300px;
  box-shadow: 0 12px 40px rgba(0,0,0,.35);
  z-index: 200;
  overflow: hidden;
}
.search-result {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: .5rem 1rem;
  align-items: center;
  padding: .7rem 1rem;
  border-bottom: 1px solid var(--border);
  transition: background .15s;
}
.search-result:last-child { border-bottom: none; }
.search-result:hover { background: var(--bg2); }
.sr-korean { font-family: var(--font-korean); font-size: 1.2rem; color: var(--gold); }
.sr-roman { font-size: .75rem; color: var(--accent); }
.sr-es { font-size: .8rem; color: var(--text-muted); }
.search-empty { padding: 1rem; font-size: .875rem; color: var(--text-muted); text-align: center; }

/* ─── Progress badges on lesson cards ───────────────────── */
.progress-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: .7rem;
  font-family: 'Courier New', monospace;
  letter-spacing: .06em;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: .2rem .5rem;
  color: var(--text-muted);
}
.progress-badge.done {
  border-color: #4caf50;
  color: #4caf50;
  background: rgba(76,175,80,.08);
}

/* Overall progress bar on homepage */
.overall-progress-wrap {
  margin-top: 1.5rem;
}
.overall-progress-track {
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: .5rem;
}
#overall-progress {
  height: 100%;
  background: var(--accent);
  width: 0;
  transition: width .6s ease;
  border-radius: 2px;
}
#overall-progress-label {
  font-size: .75rem;
  color: var(--text-muted);
  letter-spacing: .08em;
  text-transform: uppercase;
  font-family: 'Courier New', monospace;
}

/* ─── Speak button ──────────────────────────────────────── */
.speak-btn {
  position: absolute;
  top: 0;
  right: -2rem;
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted);
  font-size: .7rem;
  cursor: pointer;
  padding: .2rem .4rem;
  line-height: 1;
  transition: border-color .15s, color .15s;
}
.speak-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ─── Flashcard page ─────────────────────────────────────── */
.fc-stats {
  font-size: .8rem;
  color: var(--text-muted);
  font-family: 'Courier New', monospace;
  letter-spacing: .06em;
  margin-bottom: 1.5rem;
}
.fc-progress-bar {
  height: 2px;
  background: var(--border);
  border-radius: 1px;
  margin-bottom: 1rem;
  overflow: hidden;
}
.fc-progress-fill {
  height: 100%;
  background: var(--accent);
  transition: width .4s ease;
}
.fc-counter {
  font-size: .75rem;
  color: var(--text-muted);
  font-family: 'Courier New', monospace;
  margin-bottom: 1.25rem;
}
.flashcard {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  min-height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  perspective: 1000px;
  transition: box-shadow .2s;
  position: relative;
  transform-style: preserve-3d;
  transition: transform .4s ease;
}
.flashcard.flipped { transform: rotateY(180deg); }
.fc-front, .fc-back {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}
.fc-back { transform: rotateY(180deg); }
.fc-korean {
  font-family: var(--font-korean);
  font-size: 3.5rem;
  color: var(--gold);
  line-height: 1;
  margin-bottom: .5rem;
  text-align: center;
}
.fc-hint {
  font-size: .8rem;
  color: var(--text-muted);
  letter-spacing: .1em;
  text-transform: uppercase;
}
.fc-roman {
  font-size: 1rem;
  color: var(--accent);
  margin-bottom: .5rem;
}
.fc-es {
  font-size: 1.2rem;
  color: var(--text);
  margin-bottom: .75rem;
}
.fc-example {
  font-family: var(--font-korean);
  font-size: .9rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: .75rem;
  margin-top: .25rem;
  text-align: center;
}
.fc-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1.25rem;
  justify-content: center;
}
.fc-btn {
  flex: 1;
  max-width: 140px;
  padding: .7rem 1rem;
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: .85rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  transition: all .15s;
  letter-spacing: .04em;
}
.fc-wrong { border-color: var(--accent); color: var(--accent); }
.fc-wrong:hover { background: rgba(232,67,45,.1); }
.fc-correct { border-color: #4caf50; color: #4caf50; }
.fc-correct:hover { background: rgba(76,175,80,.1); }
.fc-speak { border-color: var(--border); color: var(--text-muted); max-width: 80px; }
.fc-speak:hover { border-color: var(--gold); color: var(--gold); }
.fc-flip-hint { text-align: center; margin-top: 1.25rem; }
.fc-done {
  text-align: center;
  padding: 3rem 2rem;
}
.fc-done-icon {
  font-size: 3rem;
  color: #4caf50;
  margin-bottom: 1rem;
}
.fc-done p { color: var(--text-muted); font-size: .95rem; }

/* Deck selector */
.deck-selector {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.deck-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: .4rem 1rem;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: .8rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all .2s;
}
.deck-btn.active, .deck-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ─── Conjugador ─────────────────────────────────────────── */
.conjugator-input-wrap {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .75rem;
  margin-bottom: 2rem;
}

/* ── Roman toggle ── */
.roman-toggle {
  display: flex;
  align-items: center;
  gap: .45rem;
  cursor: pointer;
  user-select: none;
  margin-left: auto;
}
.roman-toggle input { display: none; }
.roman-toggle-track {
  width: 36px;
  height: 20px;
  background: var(--border);
  border-radius: 20px;
  position: relative;
  transition: background .2s;
  flex-shrink: 0;
}
.roman-toggle input:checked + .roman-toggle-track { background: var(--accent); }
.roman-toggle-thumb {
  position: absolute;
  top: 3px; left: 3px;
  width: 14px; height: 14px;
  background: #fff;
  border-radius: 50%;
  transition: left .2s;
}
.roman-toggle input:checked + .roman-toggle-track .roman-toggle-thumb { left: 19px; }
.roman-toggle-label { font-size: .78rem; color: var(--text-muted); }
#verb-input {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-family: var(--font-korean);
  font-size: 1.2rem;
  padding: .65rem 1rem;
  outline: none;
  transition: border-color .2s;
}
#verb-input:focus { border-color: var(--accent); }
#verb-input::placeholder { font-family: var(--font-body); font-size: .9rem; color: var(--text-muted); }
#conjugate-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: .65rem 1.5rem;
  font-family: var(--font-body);
  font-size: .875rem;
  font-weight: 500;
  cursor: pointer;
  letter-spacing: .05em;
  text-transform: uppercase;
  transition: background .2s;
}
#conjugate-btn:hover { background: #c4371f; }
.conjugation-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: .75rem;
}
.conj-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem;
}
.conj-label {
  font-size: .7rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: .5rem;
  font-family: 'Courier New', monospace;
}
.conj-korean {
  font-family: var(--font-korean);
  font-size: 1.6rem;
  color: var(--gold);
  margin-bottom: .25rem;
}
.conj-roman { font-size: .8rem; color: var(--accent); }
.conj-es { font-size: .78rem; color: var(--text-muted); margin-top: .2rem; font-style: italic; }
.conj-empty {
  text-align: center;
  padding: 3rem;
  color: var(--text-muted);
  font-size: .95rem;
}
.conj-verbs-list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: 2rem;
}
.conj-verb-chip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: .35rem .9rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .05rem;
  font-family: var(--font-korean);
  font-size: .95rem;
  cursor: pointer;
  transition: all .15s;
  color: var(--text-muted);
}
.conj-verb-chip:hover { border-color: var(--gold); color: var(--gold); }
.chip-korean { font-family: var(--font-korean); font-size: .95rem; font-weight: 600; }
.chip-es { font-size: .65rem; opacity: .6; }

/* ─── Nav extra controls ─────────────────────────────────── */
.nav-controls {
  display: flex;
  align-items: center;
  gap: .75rem;
}

/* ─── Hamburger + lupa (header compact) ──────────────────── */
.nav-hamburger,
.search-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: 1px solid var(--border);
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  transition: background .2s, border-color .2s, color .2s;
  color: var(--text-muted);
  flex-shrink: 0;
}
.search-toggle { gap: 0; }
.nav-hamburger:hover,
.search-toggle:hover { background: var(--border); border-color: var(--accent); color: var(--accent); }
.nav-hamburger span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .25s ease, opacity .2s ease, width .25s ease;
  transform-origin: center;
}
.nav-hamburger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.is-open span:nth-child(2) { opacity: 0; width: 0; }
.nav-hamburger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
.search-toggle.is-open { border-color: var(--accent); color: var(--accent); }

/* ─── Paneles desplegables del header ────────────────────── */
.header-panel {
  position: fixed;
  top: 70px; /* aproximación; el JS no lo necesita */
  left: 0;
  right: 0;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 16px 32px rgba(0,0,0,.35);
  z-index: 99;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity .2s ease, transform .2s ease;
  pointer-events: none;
}
.header-panel.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.header-panel[hidden] { display: none; }
.header-panel-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem 3rem;
}

/* Panel del menú (vertical) */
.header-menu-list,
.header-menu-panel .nav-links {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.header-menu-list a,
.header-menu-panel .nav-links a {
  display: block;
  padding: .9rem 0;
  font-size: .95rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: .04em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  transition: color .15s, padding-left .15s;
}
.header-menu-list a:last-child,
.header-menu-panel .nav-links a:last-child { border-bottom: none; }
.header-menu-list a:hover,
.header-menu-panel .nav-links a:hover {
  color: var(--accent);
  padding-left: .35rem;
}
.header-menu-list a::after,
.header-menu-panel .nav-links a::after { display: none; }

/* Panel del buscador */
.header-search-panel .header-panel-inner {
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.header-search-input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: .75rem 1rem;
  outline: none;
  transition: border-color .2s;
  box-sizing: border-box;
}
.header-search-input:focus { border-color: var(--accent); }
.header-search-input::placeholder { color: var(--text-muted); }
.header-search-results {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}
.header-search-results .search-result {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: .5rem 1rem;
  align-items: center;
  padding: .7rem 1rem;
  border-bottom: 1px solid var(--border);
  transition: background .15s;
}
.header-search-results .search-result:last-child { border-bottom: none; }
.header-search-results .search-result:hover { background: var(--bg2); }

/* ─── Responsive: header compact ≤1350px ─────────────────── */
@media (max-width: 1350px) {
  .main-nav,
  .header-search-desktop {
    display: none !important;
  }
  .nav-hamburger,
  .search-toggle {
    display: inline-flex;
  }
  /* Pegar todos los controles a la derecha junto a la hamburguesa */
  .header-actions {
    margin-left: auto;
    margin-right: .6rem;
  }
}

/* >1350px: ocultar paneles compactos y botones de panel */
@media (min-width: 1351px) {
  .search-toggle,
  .menu-toggle,
  .header-search-panel,
  .header-menu-panel {
    display: none !important;
  }
}

/* ─── Responsive general ─────────────────────────────────── */
@media (max-width: 860px) {
  .nav { padding: 1rem 1.5rem; }
  .header-panel-inner { padding: 1.25rem 1.5rem; }
  .hero { padding: 4rem 1.5rem 3rem; }
  .lessons { grid-template-columns: 1fr; padding: 3rem 1.5rem; }
  .lessons-header { position: static; }
  .lessons-grid { grid-template-columns: 1fr; }
  .lesson-card--featured { grid-template-columns: 1fr; }
  .lesson-card--featured .card-korean { grid-column: 1; grid-row: auto; font-size: 3rem; margin-left: 0; }
  .phrase-card { grid-template-columns: 1fr; }
  .quiz-options { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; gap: .6rem; text-align: center; }
  .lesson-page { padding: 3rem 1.25rem 5rem; }
}

/* ─── SEO content (home) ─────────────────────────────────── */
.seo-content {
  border-top: 1px solid var(--border);
  background: var(--bg);
  padding: 5rem 3rem 6rem;
}
.seo-inner {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 4rem;
}
.seo-block { display: block; }
.seo-block .section-label {
  display: block;
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: .75rem;
  font-family: 'Courier New', monospace;
}
.seo-block h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.4rem);
  line-height: 1.15;
  letter-spacing: -.02em;
  margin-bottom: 1.25rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--border);
}
.seo-block p {
  font-size: 1rem;
  color: var(--text);
  line-height: 1.75;
  margin-bottom: 1rem;
}
.seo-block p:last-child { margin-bottom: 0; }
.seo-block a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color .2s;
}
.seo-block a:hover { color: var(--gold); }

.seo-list {
  list-style: none;
  padding: 0;
  margin: .25rem 0 1.25rem;
  display: grid;
  gap: .5rem;
}
.seo-list li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold);
  border-radius: 4px;
  padding: .65rem 1rem;
  font-size: .95rem;
  color: var(--text-muted);
}

/* Linking interno: pasos numerados */
.seo-steps {
  list-style: none;
  counter-reset: step;
  padding: 0;
  margin: .25rem 0 1.25rem;
  display: grid;
  gap: .5rem;
}
.seo-steps li { display: block; }
.seo-steps a {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem 1.25rem;
  color: var(--text);
  text-decoration: none;
  transition: border-color .2s, transform .15s;
}
.seo-steps a:hover {
  border-color: var(--accent);
  color: var(--text);
  transform: translateY(-2px);
}
.seo-step-num {
  font-family: 'Courier New', monospace;
  font-size: .8rem;
  color: var(--accent);
  letter-spacing: .12em;
  flex-shrink: 0;
  min-width: 2rem;
}
.seo-step-text {
  font-size: 1rem;
  letter-spacing: .01em;
}

/* FAQ con <details> */
.seo-faq .faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0;
  margin-bottom: .65rem;
  transition: border-color .2s;
}
.seo-faq .faq-item[open] { border-color: var(--gold); }
.seo-faq .faq-item:hover { border-color: var(--gold); }
.seo-faq .faq-question {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--text);
  padding: 1rem 1.25rem;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 3rem;
  letter-spacing: -.005em;
}
.seo-faq .faq-question::-webkit-details-marker { display: none; }
.seo-faq .faq-question::after {
  content: "+";
  position: absolute;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent);
  font-family: 'Courier New', monospace;
  font-size: 1.4rem;
  line-height: 1;
  transition: transform .25s;
}
.seo-faq .faq-item[open] .faq-question::after {
  content: "−";
}
.seo-faq .faq-answer {
  padding: 0 1.25rem 1.1rem;
  color: var(--text-muted);
  font-size: .95rem;
  line-height: 1.7;
  margin: 0;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

@media (max-width: 860px) {
  .seo-content { padding: 3.5rem 1.5rem 4.5rem; }
  .seo-inner { gap: 3rem; }
  .seo-steps a { padding: .85rem 1rem; gap: .75rem; }
}

/* ─── Feedback / Reseñas widget ──────────────────────────── */
.fb-fab {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 200;
  display: flex;
  align-items: center;
  gap: .55rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: .85rem 1.25rem;
  font-family: var(--font-body);
  font-size: .85rem;
  font-weight: 500;
  letter-spacing: .04em;
  cursor: pointer;
  box-shadow: 0 12px 32px rgba(232,67,45,.35);
  transition: background .2s, transform .15s, box-shadow .2s;
}
.fb-fab:hover {
  background: #c4371f;
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(232,67,45,.45);
}
.fb-fab-icon {
  font-size: 1.05rem;
  line-height: 1;
  display: inline-block;
}
.fb-fab-label { line-height: 1; }

@media (max-width: 600px) {
  .fb-fab { right: 1rem; bottom: 1rem; padding: .7rem 1rem; }
  .fb-fab-label { display: none; }
  .fb-fab-icon { font-size: 1.15rem; }
}

.fb-modal { position: fixed; inset: 0; z-index: 1000; display: flex; align-items: flex-start; justify-content: center; padding: 4vh 1rem; overflow-y: auto; }
.fb-modal[hidden] { display: none; }
.fb-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .65);
  backdrop-filter: blur(4px);
  cursor: pointer;
  animation: fb-fade .2s ease;
}
@keyframes fb-fade { from { opacity: 0; } to { opacity: 1; } }
.fb-modal-panel {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: 100%;
  max-width: 560px;
  padding: 2rem 2rem 1.5rem;
  box-shadow: 0 32px 80px rgba(0,0,0,.5);
  animation: fb-slide .25s ease;
}
@keyframes fb-slide { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
.fb-modal-close {
  position: absolute;
  top: .85rem;
  right: 1rem;
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  transition: border-color .15s, color .15s;
}
.fb-modal-close:hover { border-color: var(--accent); color: var(--accent); }

.fb-modal-header { margin-bottom: 1.25rem; }
.fb-modal-header .lesson-num { display: block; margin-bottom: .35rem; }
.fb-modal-header h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: -.02em;
  line-height: 1.15;
}

.fb-tabs {
  display: flex;
  gap: .35rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}
.fb-tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: .82rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: .65rem 1rem;
  cursor: pointer;
  transition: color .15s, border-color .15s;
  margin-bottom: -1px;
}
.fb-tab:hover { color: var(--text); }
.fb-tab.is-active { color: var(--accent); border-bottom-color: var(--accent); }

.fb-form { display: flex; flex-direction: column; gap: 1rem; }
.fb-form[hidden] { display: none; }
.fb-help { font-size: .85rem; color: var(--text-muted); margin: 0 0 .25rem; line-height: 1.5; }
.fb-field { display: flex; flex-direction: column; gap: .35rem; }
.fb-row { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
@media (max-width: 520px) { .fb-row { grid-template-columns: 1fr; } }
.fb-label {
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-family: 'Courier New', monospace;
}
.fb-label small { font-size: .9em; opacity: .7; text-transform: none; letter-spacing: 0; font-family: var(--font-body); margin-left: .35rem; }
.fb-form input[type="text"],
.fb-form input[type="email"],
.fb-form textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: .9rem;
  padding: .65rem .85rem;
  outline: none;
  transition: border-color .15s;
  width: 100%;
  box-sizing: border-box;
}
.fb-form input:focus,
.fb-form textarea:focus { border-color: var(--accent); }
.fb-form textarea { resize: vertical; min-height: 90px; line-height: 1.55; font-family: var(--font-body); }

/* Star rating */
.fb-stars { display: inline-flex; gap: .15rem; }
.fb-star {
  background: none;
  border: none;
  color: var(--border);
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  padding: .15rem .25rem;
  transition: color .12s, transform .12s;
}
.fb-star:hover { transform: scale(1.1); }
.fb-star.is-on { color: var(--gold); }

/* Pills (categoría feedback) */
.fb-pills { display: flex; flex-wrap: wrap; gap: .35rem; }
.fb-pills label { cursor: pointer; }
.fb-pills input { position: absolute; opacity: 0; pointer-events: none; }
.fb-pills span {
  display: inline-block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: .45rem .85rem;
  color: var(--text-muted);
  font-size: .8rem;
  letter-spacing: .04em;
  transition: all .15s;
}
.fb-pills label:hover span { border-color: var(--gold); color: var(--gold); }
.fb-pills input:checked + span { border-color: var(--accent); color: var(--accent); background: rgba(232,67,45,.06); }

/* Honeypot — invisible para usuarios, visible para bots */
.fb-honeypot {
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
}

.fb-actions { margin-top: .5rem; }
.fb-submit { width: 100%; text-align: center; margin: 0; animation: none; }

.fb-status {
  font-size: .85rem;
  margin-top: .25rem;
  min-height: 1.2em;
  text-align: center;
}
.fb-status.is-loading { color: var(--text-muted); }
.fb-status.is-ok { color: #4caf50; }
.fb-status.is-error { color: var(--accent); }

/* Consent checkbox dentro del modal */
.fb-consent {
  display: flex;
  gap: .65rem;
  align-items: flex-start;
  font-size: .8rem;
  color: var(--text-muted);
  line-height: 1.55;
  cursor: pointer;
  margin-top: .25rem;
  padding: .65rem .85rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  transition: border-color .15s;
}
.fb-consent:hover { border-color: var(--gold); }
.fb-consent input[type="checkbox"] {
  accent-color: var(--accent);
  margin-top: .15rem;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  cursor: pointer;
}
.fb-consent strong { color: var(--text); font-weight: 500; }
.fb-consent a { color: var(--gold); text-decoration: underline; text-underline-offset: 2px; }
.fb-consent a:hover { color: var(--accent); }

/* Variante "opcional": mismo bloque pero con borde más sutil */
.fb-consent-optional {
  background: transparent;
  border-style: dashed;
  border-color: var(--border);
}
.fb-consent-optional:hover { border-color: var(--accent); }

/* Aviso pequeño tras el consent (ej: cómo modificar reseña) */
.fb-note {
  font-size: .78rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin: 0;
  padding: .65rem .85rem;
  border-left: 2px solid var(--gold);
  background: rgba(200,168,76,.04);
  border-radius: 0 4px 4px 0;
}
.fb-note a { color: var(--gold); text-decoration: underline; text-underline-offset: 2px; }
.fb-note a:hover { color: var(--accent); }

/* ─── Reseñas en la home ─────────────────────────────────── */
.reviews-section {
  border-top: 1px solid var(--border);
  background: var(--bg2);
  padding: 5rem 3rem;
}
.reviews-inner { max-width: 1100px; margin: 0 auto; }
.reviews-header { max-width: 680px; margin: 0 auto 3rem; text-align: center; }
.reviews-header .section-label { display: block; margin-bottom: .75rem; }
.reviews-header h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -.02em;
  line-height: 1.1;
  margin-bottom: 1rem;
}
.reviews-header h2 em { font-style: italic; color: var(--accent); }
.reviews-disclaimer {
  font-size: .85rem;
  color: var(--text-muted);
  line-height: 1.6;
  font-style: italic;
}

/* Empty state — sin reseñas todavía */
.reviews-empty {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 3rem 2rem;
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}
.reviews-empty-icon {
  font-size: 2.5rem;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 1rem;
}
.reviews-empty h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: -.01em;
  margin-bottom: .85rem;
}
.reviews-empty p {
  font-size: .95rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 1.75rem;
}
.reviews-empty .btn-primary { display: inline-block; animation: none; }

/* Grid de reseñas publicadas */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  margin-bottom: 2.5rem;
}
.review-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: border-color .2s, transform .15s;
}
.review-card:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
}
.review-stars {
  display: flex;
  gap: .1rem;
  font-size: 1rem;
  line-height: 1;
}
.review-star { color: var(--border); }
.review-star.is-on { color: var(--gold); }
.review-text {
  font-size: .95rem;
  line-height: 1.6;
  color: var(--text);
  margin: 0;
  font-style: italic;
  border-left: 2px solid var(--accent);
  padding-left: 1rem;
}
.review-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: .75rem;
  color: var(--text-muted);
  letter-spacing: .04em;
  margin-top: auto;
  padding-top: .5rem;
  border-top: 1px solid var(--border);
}
.review-author { color: var(--text); font-weight: 500; }
.review-date { font-family: 'Courier New', monospace; }

.reviews-cta { text-align: center; }
.reviews-cta .btn-primary { display: inline-block; animation: none; }

@media (max-width: 860px) {
  .reviews-section { padding: 3.5rem 1.5rem; }
  .reviews-grid { grid-template-columns: 1fr; }
}

/* ─── Barra de créditos del autor ────────────────────────── */
.credit-bar {
  background: #07060a;
  border-top: 1px solid var(--border);
  padding: .85rem 1.5rem;
  text-align: center;
}
.credit-bar-inner {
  font-size: .75rem;
  color: var(--text-muted);
  font-family: 'Courier New', monospace;
  letter-spacing: .04em;
  max-width: 1100px;
  margin: 0 auto;
}
.credit-bar .credit-link {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s, color .2s;
}
.credit-bar .credit-link:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}